Sepsis is a common problem in intensive care patients leading to multi-organ failure and gastrointestinal paralysis. Aim: The aim of the study was to investigate whether the gastrointestinal tract is not only the target but also the source of inflammatory mediators inhibiting gastrointestinal motility. Methods: Mesenteric lymph was obtained from rats in which a sepsis was induced by lipopolysaccharide (LPS) intraperitoneally. Gastrointestinal motility was recorded following mesenteric lymph-or

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... NFα infusion into the jugular vein of separate healthy recipient rats using the strain gauge transducer technique. Results: Infusion of sepsis lymph significantly impairs gastric and colonic motility, decreasing the motility-index in the stomach and colon by about 57% and 21% respectively in comparison to baseline motility. Among other inflammatory mediators, TNFα plays an important role in mediating the inhibitory effect of mesenteric lymph on gastrointestinal motility during sepsis. Conclusions: The gastrointestinal tract is the source and the target of inflammatory mediators released during sepsis causing paralytic ileus.